Biology (Science & Mathematics) - February 2007

My teacher say there is silk worm and silk plant to produce silk.but when i do assessment they want silk worm so which one is more right to use????Sometimes is from plant sometimes is from worm??Confuse????

2007-02-27 20:34:06 · 11 answers · asked by Blur Blur Gal 2

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i'm confuse????Frog is external fertilization or internal?

I read the book they say internal and another is external so which one is more right or teacher will accept which one?????

2007-02-27 20:31:14 · 3 answers · asked by Blur Blur Gal 2

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reptiles have 3 to 4 chambered hearts is it that in their body have 3 heart or 4 heart?

2007-02-27 20:28:08 · 3 answers · asked by Blur Blur Gal 2

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Till what age does the brain keep growing? When do all Chemicals become balanced and all growth is done?

2007-02-27 19:33:23 · 2 answers · asked by Anonymous

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Can someone please explain the difference between DNA and RNA??

Like one summary explaining cuz I'm still confused thank you. . .

2007-02-27 19:13:54 · 9 answers · asked by Anonymous

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what is a human cell?

2007-02-27 18:34:18 · 8 answers · asked by raiyan 1

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can someone explain to me in lay mans terms what protein synthesis does.?

Seriously... I can give text book definitions for transcription and translation. But I couldnt tell you why this is necessary. Help I'm missing the big picture!!

2007-02-27 18:30:23 · 4 answers · asked by Karyn S 1

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Is there a link between stem cells and the process of apoptosis (Type I cell death)?

2007-02-27 18:06:41 · 1 answers · asked by ATP 1

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i want model peper for reaserch aptitude test in clinical reaserch?

2007-02-27 17:58:57 · 1 answers · asked by munna 1

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do democrats support human cloning?

if not, which political party does if any?

2007-02-27 17:51:40 · 2 answers · asked by flkasdjflkasdj;lrf 3

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Question regarding Antibody structure.?

It is known that the variable region of the antibody molecule is the one that differs in antibodies for different antigens. My question is, suppose 2 people encounter an Antigen A, then will the antibodies formed within both of them against this antigen have the same variable regions?

2007-02-27 17:34:30 · 3 answers · asked by Natasha 2

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if i want to combine a papaya and a banana, wt techique should i use? why and how?

if i try to combine a papaya with a banana, wt techique should i use? (nuclear transplantation, gene recombination, gene insertion, tissue culture etc.) why and how does it work??

2007-02-27 17:26:22 · 3 answers · asked by fayewred 2

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How does the structure of tRNA relate to its function in translation?

2007-02-27 17:14:30 · 1 answers · asked by Anonymous

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circulatory system?

match left column to right column, you might have to have multiple matches for the right column

a. red blood cells 1) chemical signals
b. white blood cells 2) preventing blood
c. platelets 3) oxygen transport
d. antibodies 4) fighting disease
e. hormones 5) nutrient transport
f. clot-forming blood proteins 6) waste transport

2007-02-27 16:43:10 · 2 answers · asked by PublicSUD 2

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Which is bigger, DNA or genes?

please help me. Which goes from largest to smallest, chromosomes, genes, or DNA?

2007-02-27 16:36:57 · 9 answers · asked by kira t 1

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How do the genes repsonsible for red hair work?

I heard that the gene that leads to red hair also affects skin color?
Why is it not as simple as eye color genes?

2007-02-27 16:23:09 · 2 answers · asked by salvador m 5

Biology - February 2007